I'm wondering if their rimfire ammo has that sorry old bullet lube that is sticky. That would be about the only thing that held me back. Or steel cases. They are brutal on a chamber and I would rather not use steel cased ammo.
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Speaking of strange ammo, I have some Russian made "Junior" 22LR ammo that is steel cased, and it is very accurate. I've made some good shots with it, but it has TWO negatives against it, that being steel cases and a nice HEAVY coating of some kind of lube on the bullet. But man oh man, are they accurate little things in a bolt action rifle. Unfortunately, after some shooting they start to be VERY hard to extract. I haven't seen that Junior ammo around in a long time either. I have about 800 rds. of it left, with one full brick still sealed up (they use some kind of wax coat to seal their bricks). I couldn't beat the deal I had on it, which was $9.00 a brick.